<?php

namespace app\index\controller;

use think\Controller;
use think\exception\HttpResponseException;
use think\Request;
use think\Response;

class BaseController extends Controller
{
    public function __construct(Request $request = null)
    {
        parent::__construct($request);
        header("Access-Control-Allow-Origin: *");
    }

    /**
     * 默认响应输出类型,支持json/xml
     * @var string
     */
    protected $responseType = 'json';

    /**
     * 单参数验证
     * @param mixed $str
     */
    public function notEmpty($str)
    {
        $param = $this->request->param($str);
        return empty($param) ? $this->errorMsg($str . '不能为空') : $param;
    }

    public function successes($data = null, $msg = '请求成功')
    {
        $this->result($data, 0, $msg);
    }

    public function errorMsg($msg = '', $code = 1, $data = '')
    {
        $this->result($data, $code, $msg);
    }

    /**
     * 返回封装后的 API 数据到客户端
     * @access protected
     * @param mixed  $msg    提示信息
     * @param mixed  $data   要返回的数据
     * @param int    $code   错误码，默认为0
     * @param string $type   输出类型，支持json/xml/jsonp
     * @param array  $header 发送的 Header 信息
     * @return void
     * @throws HttpResponseException
     */
    protected function result($data = null, $code = 0, $msg = '',  $type = null, array $header = [])
    {
        $result = [
            'code' => $code,
            'msg'  => $msg,
            'time' => Request::instance()->server('REQUEST_TIME'),
            'data' => $data,
        ];
        // 如果未设置类型则自动判断
        $type = $type ? $type : ($this->request->param(config('var_jsonp_handler')) ? 'jsonp' : $this->responseType);

        if (isset($header['statuscode'])) {
            $code = $header['statuscode'];
            unset($header['statuscode']);
        } else {
            //未设置状态码,根据code值判断
            $code = $code >= 1000 || $code < 200 ? 200 : $code;
        }
        $response = Response::create($result, $type, $code)->header($header);
        throw new HttpResponseException($response);
    }


}
